For those of you with 03/03.5 sedans with the belt driven mechanical radiator fan - has there been a successful replacement of the mechanical fan with an electric fan? If so, does anyone have a write up or DIY on this procedure?


-townsley-
03 Premium BS/Willow 5ATS w/mods

 

I think you'd get much easier and cheaper horsepower gains by upgrading the exhaust and installing a better intake system. I can't imagine changing to an electric fan being an easy or inexpensive thing to do - plus you may have some serious warranty issues if anything goes wrong.

BTW - What does the 5AT"S" stand for? If it's supercharged, I don't think you're going to notice much of a difference.

04 Sedan 6MT | Diamond Graphite/Graphite | Premium

 

5AT Sedan?????????????


03 5AT Sedan, sunroof, splashguards, HKS muffler,
14 wire Grounding kit, Z Duct, Stillen HF/AB
Underbody rear diffusers, Drilled alum pedals,
Stillen sway bars S/H. Sport Tuned Suspension

 

Thanks guys.

5ATS = 5-speed Automatic Transmission Sedan


-townsley-
03 Premium BS/Willow 5ATS w/mods

 

You should pm DaveO. He has done a couple of these conversions. He helped me change out the mechanical fan to an electric fan. Total cost was around $230.00. Pm me if I can answer any of your questions.

Anthony

2003.5 Black 5AT Sedan
z-tube/ jwt popcharger/crawford plenum/crawford cats/
stillen exhaust/grounding kit/e-fans
technosquare ecu /350z thermostat/double din

 

One of my next mods, as soon as I can get some time off to run up to the upper desert!

We have seen gains similar to that of installing the UR crank pulley. SoCalTed vs. DaveO and SoCalTed vs. Alagolfer on dynos.

-Ted

'03.5 Sedan 5a: BS/G, Prem, Aero/Body, Sport, Nav
Click for MODS - www.teamtransport.org

 

Awesome! Thanks so much guys. The last time I PM'd DaveO, he was still working out the kinks on the procedure. It sounds like he found a winning combination. PM to DaveO aside, can you give me any indication of the difficulties in accomplishing this? Can your "average-somewhat-mechanically-inclined home-modder" get this done with simple hand tools and enthusiasm?

-townsley-
03 Premium BS/Willow 5AT Sport Sedan
Z-tube/K&N Air Filter/5-wire Grounding Kit
Tinted/Clear Corners/Blinker Mod/Splash Guards

 

8 hours is what i've been told and lots of patience and determination. You want these guys to help you if they can so PM them if you are serious.

2003.5 DP 5AT Sedan
14.2 @ 97.18
Z-Tube
K&N Drop In & Airbox Mod
10 Wire Hyper-Ground
Crawford Plenum (V4)
UR Crank Pulley
Hotchkis Sways (M/M)
Polk EX-3500 Tweeters/Shock Sensor/H-Liner

 

Great. I am under the assumption that this change to e-fans from mech fans will reduce or get rid of the truck-like noise the 03/03.5 make at stop and go or at slow speeds, correct? I'd just like to get rid of that sound and I would like to do it cheaply but seeing as it's $230 makes me think twice about it. Also, seeing it takes about 8 hours...I mean geez, that's a long time.

 

Truck sound? I think the G sounds good, not like a truck at all, just enough of a slight roar!


Brilliant Silver/Graphite/Chrome Wheels '04 Sedan/5AT

 

I had a good long talk with DaveO yesterday - the G driver who pioneered this conversion. It sounds a bit tricky and complicated, but I'm planning on doing the conversion when my company shuts down in December. Until then, I'll be gathering the new parts and identifying where and how they tap in.

For those who like tinkering on their cars, 8 hours sounds like an enjoyable day in the garage. Plus, DaveO states that there's a clear horsepower increase following the conversion, which totally makes sense. He compared it to a crank pulley replacement. For $230, that's on par with most of the other bolt on upgrades in terms of price per horsepower.


-townsley-
03 Premium BS/Willow 5AT Sport Sedan
Z-tube/K&N Air Filter/5-wire Grounding Kit
Tinted/Clear Corners/Blinker Mod/Splash Guards